The development of a Swine Testing and Genetic Evaluation System (STAGES) has been initiated. STAGES computer programs will be implemented by national breed associations. When six developmental steps are completed, STAGES will analyze the records and evaluate individuals within each breed including on-farm, central test station and barrow tests. Short-Cut BLUP procedures, through recursive prediction, will provide rapid genetic evaluation of both postweaning and reproduction traits. The use of Short-Cut BLUP and canonical transformations will allow multivariate analyses on minicomputers currently used by purebred associations. Quadratric bioeconomic objectives will be used to define the selection criteria to maximize selection response. Three indexes are suggested: a terminal sire, general and dam-breed (maternal) objective. With the implementation of a comprehensive genetic program, intense within-herd and across-herd selection of sires and dams can increase genetic progress.

A. P Schinckel, D. L Harris, T. S Stewart, D. L Lofgren

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume X. Breeding programs for swine, poultry, and fish., , 98–109, 1986
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